This is a multicenter, open-label trial of DN-101 and docetaxel combination therapy to monitor the safety of ongoing DN-101 and docetaxel treatment for subjects previously enrolled in DN101-002 or DN101-004 studies. For subjects enrolled in DN101-002 study, only subjects randomized to the DN-101 treatment arm and are currently receiving study drug (including subjects on study suspension / holiday) will be included in the current study. For subjects enrolled in DN101-004 study, only subjects who are receiving study treatment will be included.

Safety will be assessed throughout the study. Safety evaluations will consist of a modified physical exam (vital signs and weight) and laboratory assessments. Modified physical exam should be performed at the beginning of each treatment cycle. Docetaxel-related laboratory assessments will be performed per standard of care as noted in the labeling. DN-101-related laboratory assessments for serum calcium and serum creatinine will be performed at the beginning of each treatment cycle. Clinically significant abnormal laboratory values will be reported as adverse events.